A paste for use with oil gauging tape.  The colour of the paste will change from yellow to red upon contact with water.

A chemical paste used with oil gauging tape for measuring the presence of various types of oils.  The colour of the paste will generally change from light blue to red upon contact with oil.  This paste will detect almost any kind of oil including mineral oil, vegetable oil, and animal oil, and solvents such as benzol, alcohol, acrylic solution, alkaline solution, and spirits.

一种化学浆料，用于测量各种类型油的存在。 糊状物的颜色一般会在与油接触时由浅蓝色变为红色。 这种糊状物将检测几乎任何类型的油，包括矿物油、植物油和动物油，以及溶剂，如苯甲醇、酒精、丙烯酸溶液、碱性溶液和酒精。